Combination road planer and rock crusher



Oct. 20 1959 l R. w. BOND ETAL 2,909,231

COMBINATION ROAD PLANER AND ROCK CRUSHER Filed Jan. 23, 1956 3 Sheets-sheaf 1 INVENTORS RALPH W. BOND aLLwooo R. BRENHOLTS 0M KM Oct. 20, 1959 w, BOND ETAL COMBINATION ROAD PLANER AND ROCK CRUSHER u 3 Sheets-Sheet 2 Filed Jan. 23, 1956 Oct. 20, 1959 R. w. BOND :TAL 2,909,231

comsmm'xou ROAD PLANER AND ROCK CRUSHER Filed Jan. 2a, 1956 3 Sheets-Sheet 3 "WEN 0R3 RALPH W B ND E LLWOOD R. BRE/IHOLTS COMBINATION ROAD PLANER AND vROCK CRUSI-IER Ralph W. Bond, West Springfield, and Ellwood R. Brenholts, Girard, Pa.

Application January 23, 1956, Serial No. 560,778

- Claims. (Cl. 111-24 This invention relates to road equipment and more particularly to road machines frequently referred to as road planers.

In the surfacing of roads made of gravel, loose stone,

and the like, stones larger than the size desirable arefrequently embedded in the surface of the road. These stones interfere with traffic, injure vehicle tires, are of no benefit to the road surface, andare, in other ways, objectionable. Y 7

his, accordingly, an object of this invention to provide a road planer in combination with a stone crusher for crushing stones on the surface of a road wherein the machine is simple in construction, economical to manufacture, and simple and efficient to use.

Another object of the invention is to provide a road planer having a front blade with a gate therein for delivering stones of a given size or smaller to a crusher mounted with its axis normal to a second angularly disposed blade.

A further object of the invention is to provide an improved crusher in combination with a road planer.

A still further object of the invention is to provide an improved screening mechanism in combination with a road planer.

With the above and other objects in view, the present invention consists of the combination and arrangement of parts hereinafter more fully described, illustrated in the accompanying drawings and more particularly pointed out in the appended claims, it being understood that changes may be made in the form, size, proportions, and minor details of construction without departing from the spirit or sacrificing any of the advantages of the invention.

In the drawings:

Fig. 1 is a perspective view of a machine according to the invention;

Fig. 2 is a side view of the planer shown in Fig. 1;-

Fig. 3 is a plan view of the road planer according to the invention;

Fig. 4 is a view taken on line 44 of Fig. 3 showing the screening teeth;

Fig. 5 is an enlarged view taken on line 5-5 of Fig. 3 showing an end view of the crusher and motor attached thereto;

Fig. 6 is a longitudinal cross sectional view of the concave taken on line 6-6 of Fig. 7; and

Fig. 7 is a partial top view of the concave shown in Fig. 6.

Now with more specific reference to the drawings, a road planer is shown having side runners 10 and 11 held in spaced relation by a transverse rear frame member 12 and a front frame assembly 13. The runner 10 has a forwardly and downwardly extending plate 61 attached thereto which lifts tree branches and trash out of the path.

of the runner 10. The rear frame 12 is fixedly attached to the runners 10 and 11 at 14 and 15, respectively, by welding, riveting, or other well known fastening means. The front frame 13 is made up of upwardly extending angle irons 17 and 18 fixed to the runners 10 and 11 at ice 19 and .20 at their lower ends and extending upwardly and attached to a transverse bar 21 at 23 and 24, respectively, and the transverse bar 21 forms an arch along with the angle irons 17 and 18.

The front frame 13 has the dual function of holding the runners 10 and ll together and forming an upper limit for the tongue. A rear axle 25 is made up of two transversely extending angles 26 and 27 placed back to back and held in spaced relation by hub blocks 28 and 29 which support hubs 30 and 31. The hubs 30 and 31 rotatably support wheels 32 and 33. The wheels 32 and 33 are provided with pneumatic rubber tires or other suitable tires. The axle 25 is held to the planer by means of diagonally extending reach members 36 and 37 which are attached at the front end thereof to the runners 10 and 11 by bolts or rivets 39 and 40 and are attached to the transverse frame member 12 at 41 and 42', respectively. The reach members 36 and 37 extend rearwardly and are attached to the axle 25 at 43 and 44, respectively.

Hitch The planer is provided with a hitch 47 for attaching it to 'a traction vehicle. The hitch 47 is made up of two inwardly extending angle members 48 and 49 pivotally attached to the runners 10 and 11 by bolts 52 and 53 or the like which extend through the rearwardly extending ends of angles 50 and 51 to allow the members 48 and 49 to swing upwardly and to engage the under side of the transverse member 21. The angles 48 and 49 converge at the forward ends and are pivotally attached to parallel angle tongue members 54 and 55 of the tongue made of angles with their vertical legs turned inwardly in back to back relation. bers 54 and 55 are removably attached by bolts or the like to a plate 58 which is welded to the rearward end of a ring 57 and disposed and clamped therebetween at 59 to the parallel angle tongue members54 and 55.

A lever 67 is welded to the tongue members 54 and 55 and forms a bellcrank therewith. The rear end of a lever 66 is welded to a transverse angle 149 and the angle 149 rests at either end on the converging angles 48 and 49. A bolt 60 extends through the forward end of the converging angles 48 and 49 and through the rearward ends of the tongue members 54 and 55 and through the lever 66. The upper end 67 of a lever 71 has a hydraulic cylinder 68 pivoted thereto at 69. The piston rod of the cylinder 68 is pivoted to the lever 66 at 70. Therefore, when hydraulic fluid under pressure is injected into the cylinder 68, it will force the lever 71 to swing around the bolt 60 and urge the angle 149 downwardly and when the tongue is attached to a truck or tractor, the inwardly extending angle members 48 and 49 will be lifted into engagement with the member 21, thereby urging the front end of the planer off the ground. The tongue is urged upwardly by a spring 148 which rests on a plate 75.

Frame The machine is made up generally of two frames, the main frame including the runners 10 and 11 and A-frame comprising the blades and crusher. The A-frame 80 has a front blade support 81 and a rear blade support 82. The front blade support 81 inclines to the right and rearwardly while the rear blade support 82 inclines to the left and rearwardly. Blades 260 and 287 are attached to the blade supports 81 and 82 which are rigidly attached together by longitudinally extending bar members 83, 84, and 85 rigidly attached to the blade support 81 at 86, 87, and 88, respectively, and rigidly attached to the blade support 82 at 89, 90, and 91, respectively. A blade support 280 is swingably attached to the runner 10 at 281. The blade support 280 is held in adjusted position by means of a clamp 283 which has bolts extend- Patented Oct. 20, 1959' At the forward end, the meming therethrough, clamping the blade support 280 and a guiding blade 286 in fixed position. The blade 286 is fixed to the leading edges of the blade support 280. The A-frame 80 is supported in floating relation by means of inclined springs 92 which are supported at the lower end on plates 94 and with an upwardly inclined plate 93 attached to the A-frame 80.

The upward movement of the A-frame 80 is limited by levers 110 which are pivoted to the runner at 111. A pin 112 extends through a slot 113 in the web of the runner 10 and through the levers 110 at an intermediate point and is attached to the end of the A-frame 80 at 130 in the manner disclosed in Patent No. 2,818,664 whereby it is pivotally attached by a bolt 115 to the runners 10 and 11 and extends upwardly and has a nut 116 thereon which is supported on the end of the A-frame 80 under a flange 117 of an angle 118. A crank 119 is attached to the upper side of the nut 116 and the nut 116 threadably engages the bolt 115 so that when the crank 119 is rotated in the proper direction, the ends of the A-frame 80 may be urged downwardly. Therefore, the upward moverent of the A-frame 80 will be limited by the nuts 116 and the frame 80 will be suspended by the springs 92.

A smoothing member 125 for mixing dirt and rock chips is pivotally attached to the rear end of the runners 10 and 11 at 126 and 127, respectively, and a link 128 is attached to a smoothing member 129 at 330. A lever 136 is welded to the link 128 and forms a bellcrank therewith. The upper end of the lever 136 is attached to a line 150 which extends around a roller 155 attached to the member '48 and then around a roller 153 pivotally attached by a horizontal axle to the angle member 48. The line 150 has its front end attached to the rear end of the members 54 and 55. Therefore, when the cylinder .68 is extended to raise the front end of the planer, the rear ends of the members 54 and 55 are raised and the line 150 drawn. This will swing the lever 136 forward and lift the smoothing member 125. By means of the line 150, the smoothing member 125 on smoothing member 129 can be lifted for transportation when the front end of the planer is lifted by the cylinder 68. A spring 137 is supported at 138 on the smoothing member 129 at the lower end thereof and on a gusset plate 140 attached to the main frame at the forward end thereof. The spring 137 therefore urges the smoothing member 129 downwardly into engagement with the surface of the road and spreads the stones which are crushed by swinging hammers 168 of the crusher.

Crusher The crusher is mounted on the A-frame 80 and raised up and down therewith. The crusher is made up of a shaft 160 journalled in bearings 161 which are attached to the main frame or to a frame resting on the A-frame 80 by means of bolts 163 and to a brace 164 by means of a journal 165. The shaft 160 has arms 167 attached thereto and swingable therewith. On the ends of the arms 167 are hammers 168 which are pivoted thereto at 169. Pulleys 170 are keyed to the shaft 160 and engaged by a V-belt 165a which is driven by a motor 166 to a pulley 267. A cover 268 is mounted over the swinging hammers 168 and attached to the frame 80 at 269. A baffle 171 is fixed to the frame 80 at 172 to guard against large rocks being thrown out of the crusher.

A downwardly extending concave 174 forms a buffer for the stones struck by the hammers 168 to beat against. The concave 174 is better shown in Fig. 6 and has side plates at each side thereof and spaced bars 300 extending between the side plates. Bars 301, 306, and 307 are arranged with their leading edges 305, 309, and 310 in generally arcuate relation. The hammers 142 swing past the leading edges 305, 309, and 310 of the concave bars 301, 306, and 307 and break the stones as they are slid inbetween. The swinging hammers 142 first engage the stones while they are on the ground ahead of the concave 174 and crush some of them. The stones are then drawn up over the concave bars 301, 306, and 307 by the hammers 313 swinging on arms 312 which pass generally tangentially to the ground and carry stones from the ground over the bars 301, 306, and 307 and the sizes of the stones are reduced thereby.

Screening teeth 220 are attached to a channel bar 221 at 222. The channel 221 is attached to the blade support 81 at 223 and to the bar at 225. The screening teeth 220 may be in relative alignment with the forward end of the blade 287 which is also adjustable so that the amount of rocks entering does not exceed the capacity of the crusher and the surplus overflows to the right and passes :back to the smoothing member 129. The larger stones are first broken against the ground and only the resulting fragments and smaller stones reach the concave 174.

During operation, the planer is attached to the rear end of a truck or similar traction vehicle by means of the ring 57 and the cylinder 68 is adjusted to allow the planer to run at the proper level with the blades 260, 286, and 287 limited to'the proper level. As the planer is drawn along the road, stones roll along the front of the front blade 286 and along the blade 260 and past the screening teeth 2 20. The small stones and dirt will pass between the teeth 220 while the large stones will have the loose dirt shaken off and relatively clean stones will lie in front of the entrance blade 287 and be directed to the crusher. The crushed stones will be discharged from the crusher onto the member 129 whereby they will be spread. A portion of the larger stones will be deflected to the left by the screening teeth 220 and be engaged by the swinging hammers142 of the crusher first while they are on the ground, and then urged between the hammers 1 42 and the concave bars 301, 306, and 307 and there be cracked and reduced to small sizes suitable for use on the road. The finely broken chips discharge from the left of the crusher and pass to the smoothing member where the desired size is leveled. The oversized chips roll along the smoothing member, mingle with the overflow from the crusher mouth, and are discharged from the end of the smoothing member to form a windrow which is picked up and processed again on a succeeding pass of the machine.

The screening teeth 220 may be adjusted laterally relative to the leading edge of the blade 287 so that a. portion of the stones will be to the right of the blade 287 and, therefore, not be delivered to the crusher and be delivered to the right side of the road by the smoothing member 125. This is desirable where a large number of stones are encountered and the crusher capacity might be exceeded.

The foregoing specification sets forth the invention in its preferred practical forms but the structure shown is capable of modification within a range of equivalents without departing from the invention which is to be understood is broadly novel as is commensurate with the appended claims.

The embodiments of the invention in which an exclusive propertyor privilege is claimed are defined as follows:

1. A road planer comprising a fixed frame, a movable A-shaped frame suspended on said fixed frame in generally flating relation, ground engaging means on said fixed frame, means to attach said planer to a traction vehicle, said movable frame comprising a front blade disposed at an angle to said fixed frame, the rearward end of said front blade terminating adjacent a plurality of laterally spaced, aligned, downwardly extending teeth, said teeth being attached to a bar at their upper ends, said teeth curving downwardly and rearwardly from said bar and terminating in ground engaging points spaced from each other and independent of each other, and a crusher supported on said movable frame and being disposed laterally and rearwardly of said teeth, said teeth being adapted to direct large stones to said crusher and adapted to allow small stones to come to rest on a road.

2. The planer recited in claim 1 wherein a spreading bar is attached to said planer rearwardly of said crusher and extends rearwardly and laterally therefrom, said spreading bar being adapted to spread rocks broken by said crusher evenly over the surface of a road and rocks larger than a given size to the side of said road.

3. The planer recited in claim 2 wherein a guiding blade is attached to said planer forward of said front blade, said guiding blade being inclined rearwardly and toward said first blade and adapted to direct rocks toward said first blade and toward said crusher.

4. The planer recited in claim 3 wherein the rear end of said fixed frame is supported on ground engaging wheels and means is attached to the front end of said fixed frame to attach said planer to a tractive vehicle.

5. In combination, a road planer and a crusher comprising spaced, generally parallel runners having wheels attached thereto, a spreading blade attached to one said runner and extending toward another'said runner and rearwardly, a movable frame comprising two blades disposed in A-shaped relation suspended on said runners by springs supporting said movable frame at each end thereof in floating relation, said blades comprising a front blade adapted to engage the surface of a road and extending from one side of a fixed frame toward the other side and rearwardly thereof, said front blade terminating ad jacent the center of the space between said runners, a plurality of resilient spaced teeth attached to said movable frame and disposed in side by side relationship in a row inclined laterally and toward a crusher, said crusher being adapted to receive large rocks from said teeth, and said blades further comprising a second blade attached to said -movable frame forward of said teeth and inclined rear- Wardly and toward said teeth, said teeth being adapted to receive rocks from said blades and to deliver said rocks to said crusher substantially free of small rocks.

References Cited in the file of this patent UNITED STATES PATENTS Re. 20,611 Nickerson Ian. 4, 1938 1,861,925 Kime June 7, 1932 2,116,468 Cost May 3, 1938 2,209,710 Wood July 30, 1940 2,368,331 Seaman Jan. 30, 1945 2,381,330 Ariens Aug. 7, 1945 2,577,329 Irvine Dec. 4, 1951 2,644,377 Hawkins July 7, 1953 FOREIGN PATENTS 664,071 Great Britain Jan. 2, 1952 

